No celebration is complete without balloons! These classic 12" party balloons feature our hand-lettered "Hello World" design. WARNING: CHOKING HAZARD. Children under 8 years and pets can choke or suffocate on un-inflated or broken balloons. Adult supervision required. Keep un-inflated balloons from children and pets. Discard broken balloons at once. L 6" x W 4.5" x H 0.75"